Fingertip Pulse Oximeter Prince-100AThe most cost-effective member of Heal Force Prince-100 oximeter family. Monochrome digital LCD display can be read in all lighting conditions, day or night. Up to 50 hours of continual operation on two AAA batteries. Fingertip Pulse Oximeter Prince-100B3 Prince-100B Series uses OLED/STN screen, SpO2 and pulse rate can be read from … Continue reading HealForce